I've been looking forever for a gutbewerteten so safe lock for my bicycle, many sites and forums have scoured and I finally decided on this castle. Among other things, because it is priced in the middle and was supported by various bicycle pages also recommended. It has security level 9 of 15, which I perfectly adequate for my bike seems, since I almost never connect it at night or on little crowded places. I coped so far comfortably on any bicycle, but a lantern, it would certainly not be enough. At first I was skeptical because I really wanted but a lock and key now, I find it without a key, which you have to dig out only somewhere, much more practical. The figures may be adjusted in my opinion slightly and the lock opens without difficulty. Could imagine that men with big hands have trouble me. Mir is aufgefallen- and I think that's good as well that it's really open only if you have the numbers exactly adjusted. At the maddest I find the associated bracket that simply using the screws that are provided for a water bottle holder, the frame of the wheel can be attached. It looks chic and it wobbles and rattles absolutely nothing! I am with the purchase so far very satisfied and would recommend it. Anyone who has (even at night) often let out his bike and high security needs should use two locks, anyway.